A 24-hour notice is all that’s needed for the PMRDA to pull down illegal, under-construction structures. This is according to the latest amendment to the Maharashtra Regional Town Planning Act. There are 1,650 structures that cannot be regularized. Among these, the under-construction buildings will be dealt with first before the remainder are assessed. Officials say that we would specially survey the metro route and ring road project areas, and take action against any such illegal constructions that will hamper these projects.